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*Ashok Rajgopal - Fortis Hospital,New Delhi - New Delhi, India*Email: arajgopal@hotmail.comOBJECTIVE: To evaluate the results of results of total knee replacement (TKA) in stiff andAnkylosed knees.A retrospective study was done to evaluate the results of total knee arthroplasty performed on110 knees in 69 patients with spontaneously Ankylosed knees. The reasons of ankylosis wasprevious infection (pyogenic and tuberculous), inflammatory arthritis (rheumatoid arthritis,Juvenile rheumatoid arthritis, ankylosing spondylitis) and post –traumatic. The age at operationranged from 30 to 65 years (average 42.8 years). Preoperative arc of movement was between 0degrees and 20 degrees (average, 14 degrees). The difficulties encountered in surgical exposurewere managed by using various extensile exposure techniques. Quadriceps snip was used in allcase to avoid patellar avulsion. Follow-up ranged from 5 to 17 years (average, 9 years). Theaverage postoperative arc of movement at final follow-up was 75.8 degrees, with a significantaverage gain of 61 degrees at final follow up. The average preoperative Hospital for SpecialSurgery Knee Score was 60 which improved to 75 at the final follow up. The average extensorlag was 8 degrees (range 0- 20 degrees). . Complications included skin edge necrosis (35%),pyogenic infection in 3 patients, and a quadriceps tendon rupture in 1 patient. 4 knees wererevised on account of component loosening.Conclusions: Total knee arthroplasty in Ankylosed knees does achieve correction of deformitywith gain in range of motion leading to improved quality of life. Meticulous surgical techniqueis required to prevent complications. We believe that TKA in Ankylosed knees is a viableoption.Saturday, October 9, 2010, 16:00-16:50Session A23: Knee MechanicsThe Effect of Greater External Rotation of the Femoral Component as aResult of Gap Ligament Balancing on Patellar Tracking and FlexionInstability in Total Knee ArthroplastyINTRODUCTION*Gary Rasmussen - The Orthopedic Specialty Hospital - Murray, USA*Email: glrasmussen@msn.comfile:///E|/ISTA2010-Abstracts.htm[12/7/2011 3:15:47 PM]